I found a strange PDF on my computer called "tractatus logico-suicidalis". I don't remember downloading it like some kind of creepypasta. I haven't read it yet but the internet tells me the author left this book in place of a suicide note before dying by self inflicted overdose. It seems like a semi-fictionalized series of aphorisms on "suicidology", but again, I haven't actually read it yet. If that isn't weird theory I don't know what is.